Summary of Topics s48_15_sum.htmlSummary of Topics
This revision to ANSI/UL 48 dated May 14, 2025 includes the following changes in requirements:
– Definitions for sign body, maintenance, and service; 2.52 (deleted), 2.65.1, 2.67, 2.75 (deleted), 2.36.2, 2.44, 4.1.1.4, 4.1.3.3.5, 4.1.5.3.4, 4.2.2.1.4, 4.2.2.2.1, 4.2.2.3.1, 4.2.4.1.1, 4.3.1.4, 4.3.1.17, 5.11.1, 5.11.2, 8.1.2, 8.2.1, 8.4.1
– Cast metal thickness; Table 4.1
– Hinged panel pinch hazards; 4.1.1.4, 4.1.1.9, 5.21, 7.2.15.1
– Fabric sign faces; 4.1.2.4.1, 4.1.8, 5.22
– Drain openings; 4.1.3.2.3.1, 4.1.3.2.3.2 (deleted), 4.1.3.2.3.4, 4.1.3.2.3.8 (deleted), 4.1.4.3.1, 4.3.1.5, 4.3.1.14, 8.1.7
– Painted flexible metal conduit; 4.1.3.3.5 (deleted)
– Mounting hardware loading test; 4.1.6.1A.1, 4.1.6.1A.3, 5.24
– Accessibility; 4.2.2.3.1 – 4.2.2.3.4
– Thermal spacings; 4.5, 4.1.1.7, 4.1.2.3.2, 4.1.7.3, 4.4.2.4, 5.6.2
– Supply connections for class 2 signs; 4.2.5.2.1.8
– Rail mounted components; 4.3.1.2
– Digital display signs; 2.14.1, 4.4.13
– Marking legibility; 7.1.2, 5.23
– Flag labels for portable signs; 7.1.2
– Marking minimum letter height; 7.1.3, 7.1.4, 7.3.1
– Environmental location markings for multi-housing signs; 7.2.12, 7.2.13, 7.2.14 (deleted), 7.7.2, 8.1.2
– Editorial revisions; 1.4, 4.1.1.4, 4.1.3.3, 4.2.5.2.2.2, 4.4.6.1.2, 4.4.6.2.1, 5.9.5, Figure 5.2